<section  style="position: relative;">
  <button nz-button style="position:absolute;right: 0;top: 4px;z-index: 1000;" nzType="primary" (click)="selectRoom()">选择区域</button>
  <sf #sf [formData]="param" [schema]="schema" (formSubmit)="formSubmit($event)" ></sf>
</section>
